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EP 4 469 643 A1

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(43) Date of publication: 04.12.2024 Bulletin 2024/49 (21) Application number: 23745771.8 (22) Date of filing: 26.01.2023

(51) International Patent Classification (IPC):  E04C 2/40(2006.01) E04B 1/343(2006.01) E04B 7/00(2006.01) B65D 88/02(2006.01) E04B 2/00(2006.01) E04H 1/12(2006.01) (52) Cooperative Patent Classification (CPC): E04C 2/40; E04C 2/043; E04C 2/52; E04C 2/34; E04D 3/352; E04D 3/357; E04D 3/358; E04B 9/30; E04B 9/241; E04B 9/0464; E04B 9/0485; E04B 9/001; E04B 1/34336; E04H 2001/1283 (86) International application number: PCT/CA2023/050106 (87) International publication number: WO 2023/141716 (03.08.2023 Gazette 2023/31)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 26.01.2022 US 202263303443 P (71) Applicant: Fero International Inc. Hamilton, ON L8N 1L3 (CA)	(72) Inventors: DICRISTOFARO, Vincenzo Hamilton, Ontario L8N 1L3 (CA) URETSKY, Alex Hamilton, Ontario L8N 1L3 (CA) (74) Representative: Papa, Elisabetta et al Società Italiana Brevetti S.p.A Piazza di Pietra, 39 00186 Roma 00186 Roma (IT)